Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"gian van data snippets" » "giang van data snippets", "gian dan data snippets", "gian lan data snippets", "gian van dat snippets", "gian van dao snippets", "gian van dau snippets", "gian van data slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("gian van data snippets") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gian van data snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian van data snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian van data snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.